Manually-operated inflating-pump.



R. R. JACKSON. MANUALLY OPERATED INFLATING PUMP.

APPLICATION HLED SEPT- 5.1916.

. J .72 @My W 6mm zfi w d 6 Wm a #W L 3, W i w f0 fix 1 d ROBERT REYNOLD JACKSON, 01? SGUTH KENSINGTON, LONDON, ENGLAND MANUALLY-OPERATED INFLATING-PUMP.

Application filed September 5, 1916.

To all whom it may concern:

Be it known that I, Ronnirr REYNOLD JACKSON, a sub'ect of the King of Great Britain and Ireland, and resident of South Kensington, county of London, England, have invented a certain new and useful linprovement in Manually-Operated Infiating- Pumps, of which the following is a specification.

This invention relates to tire and like inllators of the reciprocatory barrel type, and the present invention consists essentially in the provision of an operating foot step at the :loot end of the barrel so that the inflator can be worked by the conjoint action of hand and foot, said operating foot step being rigid with the barrel or foldable; other features consist in the provision of the hereinafter described means for locking the barrel and plunger together for the purpose hereinafter set forth, and in making the barrel of great length to enable the user to stand upright when pumping, said barrel being in one length or in sections.

The invention is illustrated by the accompanying sheet of drawings, in which Figures 1 and 2 are views taken at right angles to each other of an inflator with barrel formed in one length, Fig. 2 being partly in section.

Figs. 3 and 4 are views of an inflator with barrel provided with an outer sheath, Fig. 3 being the closed in position and Fig. 4c the expanded position.

Like letters 01": reference indicate corresponding parts in the several figures.

In carrying out the invention, the inflator or pump, which is of the type in which the barrel a is the reciprocated part, is made in one piece and extremely longFigs. 1 and 2-to reach from the ground to about the users shoulder, thus enabling him to stand upright when pumping, the base I) of the plunger 0, which is also correspondingly long, being provided with any usual or suitable form of foot 42 and nipple e for connecting up.

The foot end 7 of the barrel (1 is provided with an operating foot step 9 which may be either rigid with said barrel or foldable, so that when extra pressure is required when working, the users foot can be placed thereon and the pump worked by hand and foot pressure at the same time.

Owing to the great length of the pump Specification of Letters Patent.

Patented Jan. 22, 191.55.

SeriaI No. 118,510.

barrel and the conjoint action of hand and foot there obtains a great reduction in fatigue to the user, and, as the pump is in tended not only for garage use but also for owner-drivers and others, the barrel of the pump may be made in sections instead of in one length, that is to say, the barrel (4-, shown in Figs. 1 and 2 of the drawings, would, as shown in Figs. 3 and t, be made shorter and be provided with an outer sheath a of approximately the same length as said barrel (4, which sheath (4 when the pump is required for use is slid to the top end of said. barrel a, as in Fig. at, making the barrel oil. a length corresponding to that of the barrel (zFig. lsaid sheath being locked to said barrel by any suitable means, and when not required is unlocked and pushed down over the barrel-as in Fig. 3-and again locked thereto, thus decreasing the length of said pump, enabling the same to be readily carried about.

Further, owing to the extreme length of the pump or inflator it is preferable that the barrel be, when the same is in one piece or length, stayed, ribbed or otherwise protected to prevent denting or buckling.

To prevent the pump or inflator opening out when being carried about, the foot step 9 of the barrel a is provided with a heel or projection adapted when said barrel is depressed against the action of the spring h and turned around as in Fig. 1 to engage under the action of said spring 72, in a recess j in the underside of the head of the base 6 of the plunger 0, thus locking the barrel and plunger together.

y my invention I dispense with any exterior handles so that the apparatus forms practically a pole pump.

aving now described my invention, what I claim as new and desire to secure by Letters Patent of the United States is 1. A tire inflating pump including a stationary plunger and a reciprocating barrel of extended length whereby the upper end thereof constitutes a handle for the operator when standing upright, and an offset stirrup at the lower end of said barrel whereby the latter may be operated by the conjoint use of hand and foot.

2. A tire inflating pump including astationary plunger, a reciprocating barrel, a tubular sheath extensibly fitted to the upper end of said barrel to provide an operators hand grip and a laterally projecting foot stirrup carried by the lower end of the barrel.

3. An inflator comprising a stationary plunger, a reciprocating barrel of great length, a foot step at the foot end of said barrel, :1 heel. to said foot step, a spring interposed between said foot step and the head of the base of the plunger,'and a recess 011 the underside of said head, said heel engag- 1 ing in said recess when the barrel is turned around after compressing said sprin In testimony whereof I have afiiXed my signature in presence of two witnesses.

ROBERT REYNOLD JACKSON.

\Vitness'es: r

Ree'r. HUNTER, PERCY M..G00nw1x.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of lat'ents;

Washington, D. G. 

